BLA0912-250R
Avionics LDMOS power transistor
Rev. 4 — 1 September 2015
Product data sheet
1. Product profile
1.1 General description
Silicon N-channel enhancement mode LDMOS transistor encapsulated in a 2-lead
SOT502A flange package with a ceramic cap. The common source is connected to the
mounting flange.
Table 1.
Test information
Typical RF performance measured in common source class-AB test circuit at PL = 250 W and 960 MHz to 1215 MHz
frequency band. Th = 25 C; Zth(j-h) = 0.15 K/W; unless otherwise specified.
f
tp
VDS PL
(MHz)
(s)
%
(V)
(W) (dB) (dB) (%) (dB)
(ns) (ns) (K/W)
(deg)
all modes
960 to 1215
100
10
36
250 13.5 0.8
50
0.1
25
6
0.18
5
TCAS
1030 to 1090
32
0.1 36
250 14.0 0.8
50
0
25
6
0.07
5
Mode-S
1030 to 1090
128
2
36
250 13.5 0.8
50
0.1
25
6
0.15
5
1030 to 1090
340
1
36
250 13.5 0.8
50
0.2
25
6
0.20
5
960 to 1215
3300 22
36
200 13.0 1.2
45
0.2
25
6
0.45
5
Mode of operation
JTIDS
Gp
Gp
D
Pdroop(pulse)
tr
tf
Zth(j-h) ins(rel)
CAUTION
This device is sensitive to ElectroStatic Discharge (ESD). Therefore care should be taken
during transport and handling.
1.2 Features and benefits
High power gain
Easy power control
Excellent ruggedness
Source on mounting base eliminates DC isolators, reducing common mode
inductance.
1.3 Applications
Avionics transmitter applications in the 960 MHz to 1215 MHz frequency range such
as Mode-S, TCAS and JTIDS, DME or TACAN.
BLA0912-250R
Avionics LDMOS power transistor
2. Pinning information
Table 2.
Pinning
Pin
Description
1
drain
2
gate
3
source
Simplified outline
Graphic symbol
1
1
3
[1]
2
2
3
sym039
[1]
Connected to flange.
3. Ordering information
Table 3.
Ordering information
Type number
Package
BLA0912-250R
Name
Description
Version
-
flanged LDMOST ceramic package;
2 mounting holes; 2 leads
SOT502A
4. Limiting values
Table 4.
Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol
Parameter
VDS
Conditions
Min
Max
Unit
drain-source voltage
-
75
V
VGS
gate-source voltage
-
22
V
Th 25 C; tp = 50 s; = 2 %
Ptot
total power dissipation
-
700
W
Tstg
storage temperature
65
+150
C
Tj
junction temperature
-
200
C
5. Thermal characteristics
Table 5.
Thermal characteristics
Symbol
Parameter
Conditions
transient thermal impedance from junction to
heatsink
Th = 25 C
Zth(j-h)
[1]
BLA0912-250R#4
Product data sheet
[1]
Typ
Unit
0.18
K/W
Thermal resistance is determined under RF operating conditions; tp = 100 s, = 10 %.
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BLA0912-250R
Avionics LDMOS power transistor
6. Characteristics
Table 6.
DC characteristics
Tj = 25 C; per section unless otherwise specified.
Symbol Parameter
Conditions
Min
V(BR)DSS drain-source breakdown voltage VGS = 0 V; ID = 3 mA
Typ
Max Unit
75
-
-
V
VGS(th)
gate-source threshold voltage
VDS = 10 V; ID = 300 mA
4
-
5
V
IDSS
drain leakage current
VGS = 0 V; VDS = 36 V
-
-
1
A
IDSX
drain cut-off current
VGS = VGSth + 9 V;
VDS = 10 V
45
-
-
A
IGSS
gate leakage current
VGS = 20 V; VDS = 0 V
-
-
1
A
gfs
forward transconductance
VDS = 10 V; ID = 10 A
-
9
-
S
RDS(on)
drain-source on-state resistance VGS = 9 V; ID = 10 A
-
60
-
m
Table 7.
RF characteristics
RF performance in common source class-AB circuit; Th = 25 C; Zth = 0.15 K/W; unless otherwise
specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VDS
drain-source voltage
-
-
36
V
f
frequency
960
-
1215
MHz
PL
output power
tp = 100 s; = 10 %
250
-
W
Gp
power gain
PL = 250 W
12
13
dB
D
drain efficiency
tp = 100 s; = 10 %
40
50
Zth(j-h)
transient thermal impedance
from junction to heatsink
tp = 100 s; = 10 %
-
-
0.2
K/W
Th
heatsink temperature
55
-
+70
C
%
Pdroop(pulse)
pulse droop power
tp = 100 s; = 10 %
-
0.1
0.5
dB
resp(sp)
spurious response
VSWRload = 2 : 1
-
-
60
dBc
tr
rise time
-
25
50
ns
tf
fall time
-
6
25
ns
6.1 Ruggedness in class-AB operation
The BLA0912-250R is capable of withstanding a load mismatch corresponding to
VSWR = 5 : 1 through all phases under the following conditions: VDS = 36 V;
f = 960 MHz to 1215 MHz at rated load power.
BLA0912-250R#4
Product data sheet
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BLA0912-250R
Avionics LDMOS power transistor
7. Application information
7.1 Impedance information
Table 8.
Typical impedance
Typical values per section unless otherwise specified.
f
ZS
ZL
MHz
960
0.89 j1.70
1.53 j1.13
1030
1.37 j1.23
1.47 j0.99
1090
2.09 j1.27
1.38 j0.85
1140
2.40 j1.97
1.30 j0.71
1215
1.51 j2.61
1.17 j0.47
drain
ZL
gate
ZS
001aaf059
Fig 1.
Definition of transistor impedance
7.2 Application circuit
L2
L1
C1
L3
L5
L4
C2
C3
C4
L6
L7
L8
C5
001aab085
See Table 9 for details of striplines.
Fig 2.
BLA0912-250R#4
Product data sheet
Layout of class-AB application circuit
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BLA0912-250R
Avionics LDMOS power transistor
Table 9.
Layout details
See Figure 2.
Striplines are on a Rodgers Duroid 6010 Printed-Circuit Board (PCB); r = 10.2 F/m;
thickness = 0.64 mm
Component
Description
Dimensions
L1
stripline
5 mm 0.8 mm
C1
stripline
1.2 mm 3.5 mm
L2
stripline
capacitor pad: 1 mm 1 mm (1)
Input circuit
curve: width 0.8 mm; angle 90; radius 0.8 mm (10)
vertical: 3.9 mm 0.8 mm (2)
vertical: 9.4 mm 0.8 mm (3)
horizontal: 0.5 mm 0.8 mm (4)
3 mm 2 mm
L3
stripline
C2
stripline
4 mm 6.5 mm
L4
stripline
5 mm 1 mm
C3
stripline
8.8 mm 30 mm + 0.2 mm 13 mm
Output circuit
C4
stripline
0.2 mm 13 mm + 19 mm 17.1 mm
L5
stripline
2.5 mm 2.3 mm
L6
stripline
4 mm 1 mm
C5
stripline
3 mm 6.6 mm
L7
stripline
curve: width 0.8 mm; angle 90; radius 0.8 mm (6)
vertical: 2.2 mm 0.8 mm (2)
vertical: 6 mm 0.8 mm (1)
horizontal: 1 mm 0.8 mm (2)
L8
stripline
2.5 mm 0.8 mm
1/4 line
stripline
curve: width 1 mm; angle 90; radius 0.8 mm
vertical: 5 mm 1 mm
horizontal: 19 mm 1 mm
BLA0912-250R#4
Product data sheet
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BLA0912-250R
Avionics LDMOS power transistor
40
C1
C2
C3
C4
40
C5
C8 C9 C10
R1
R2
60
C7
C6
001aab083
Dimensions in mm.
See Table 10 for list of components.
Fig 3.
Component layout for class-AB application circuit
Table 10. List of components
See Figure 3.
BLA0912-250R#4
Product data sheet
Component
Description
C1, C3, C9
multilayer ceramic chip capacitor 1 nF
Value
[1]
Remarks
C2, C6, C10
multilayer ceramic chip capacitor 22 pF
[2]
C4
tantalum SMD capacitor
47 F; 20 V
KEMET: T491D476M020AS
C5
multilayer ceramic chip capacitor 56 pF
[2]
C7
multilayer ceramic chip capacitor 47 pF
[2]
C8
tantalum SMD capacitor
22 F; 63 V
R1
SMD resistor
51
R2
resistor
49.9
[1]
American Technical Ceramics type 100B or capacitor of same quality.
[2]
American Technical Ceramics type 100A or capacitor of same quality.
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BLA0912-250R
Avionics LDMOS power transistor
8. Test information
8.1 RF performance
Typical RF performance measured in common source class-AB test circuit at PL = 250 W
and 960 MHz to 1215 MHz frequency band. Th = 25 C; Zth(j-h) = 0.15 K/W; unless
otherwise specified.
001aab078
15
ηD
Gp
(dB)
13
ηD
(%)
45
Gp
Gp
(dB)
(5)
16
(2)
14
(1)
12
35
11
001aab079
18
55
(4) (3)
10
9
25
7
15
8
6
4
5
940
990
1040
1090
1140
1190
f (MHz)
5
1240
2
0
100
200
300
PL(W)
Th = 25 C; VDS = 36 V; IDq = 150 mA; class-AB;
tp = 100 s; = 10 %.
Th = 25 C; VDS = 36 V; IDq = 150 mA; class-AB;
tp = 100 s; = 10 %.
(1) f = 960 MHz
(2) f = 1030 MHz
(3) f = 1090 MHz
(4) f = 1140 MHz
(5) f = 1215 MHz
Fig 4.
Power gain and drain efficiency as function of
frequency; typical values
BLA0912-250R#4
Product data sheet
Fig 5.
Power gain as a function of load power;
typical values
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BLA0912-250R
Avionics LDMOS power transistor
001aab080
300
001aab081
60
(2)
(5)
(1)
50
250
PL
(W)
200
(1)
(5)
ηD
(%)
40
(4)
(2)
(3)
150
30
100
20
50
10
0
0
0
2
4
6
8
10
12
14
16
Pi (W)
0
Th = 25 C; VDS = 36 V; IDq = 150 mA; class-AB;
tp = 100 s; = 10 %.
50
(1) f = 960 MHz
(2) f = 1030 MHz
(2) f = 1030 MHz
(3) f = 1090 MHz
(3) f = 1090 MHz
(4) f = 1140 MHz
(4) f = 1140 MHz
(5) f = 1215 MHz
Product data sheet
150
200
250
PL (W)
300
(5) f = 1215 MHz
Load power as a function of input power;
typical values
BLA0912-250R#4
100
Th = 25 C; VDS = 36 V; IDq = 150 mA; class-AB;
tp = 100 s; = 10 %.
(1) f = 960 MHz
Fig 6.
(4)
(3)
Fig 7.
Efficiency as a function of load power;
typical values
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Rev. 4 — 1 September 2015
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BLA0912-250R
Avionics LDMOS power transistor
9. Package outline
Flanged ceramic package; 2 mounting holes; 2 leads
SOT502A
D
A
F
3
D1
U1
B
q
c
C
1
H
L
E1
p
U2
E
w1 M A M B M
A
2
w2 M C M
b
0
5
Q
10 mm
scale
DIMENSIONS (millimetre dimensions are derived from the original inch dimensions)
UNIT
A
b
c
mm
4.72
3.43
12.83
12.57
0.15
0.08
inches
0.186
0.135
0.505 0.006
0.495 0.003
OUTLINE
VERSION
D
E
E1
F
H
L
p
Q
q
U1
U2
w1
w2
20.02 19.96
19.61 19.66
9.50
9.30
9.53
9.25
1.14
0.89
19.94
18.92
5.33
4.32
3.38
3.12
1.70
1.45
27.94
34.16
33.91
9.91
9.65
0.25
0.51
0.788 0.786
0.772 0.774
0.374 0.375
0.366 0.364
0.067
1.100
0.057
1.345
1.335
0.390
0.380
0.01
0.02
D1
0.045 0.785
0.035 0.745
0.210 0.133
0.170 0.123
REFERENCES
IEC
JEDEC
JEITA
ISSUE DATE
03-01-10
12-05-02
SOT502A
Fig 8.
EUROPEAN
PROJECTION
Package outline SOT502A
BLA0912-250R#4
Product data sheet
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Avionics LDMOS power transistor
10. Abbreviations
Table 11.
Abbreviations
Acronym
Description
DC
Direct Current
DME
Distance Measuring Equipment
JTIDS
Joint Tactical Information Distribution System
LDMOS
Laterally Diffused Metal-Oxide Semiconductor
LDMOST
Laterally Diffused Metal-Oxide Semiconductor Transistor
Mode-S
Mode Select
RF
Radio Frequency
SMD
Surface Mounted Device
TACAN
TACtical Air Navigation
TCAS
Traffic Collision Avoidance System
VSWR
Voltage Standing-Wave Ratio
11. Revision history
Table 12.
Revision history
Document ID
Release date
Data sheet status
Change notice
Supersedes
BLA0912-250R#4
20150901
Product data sheet
-
BLA0912-250R v.3
Modifications:
•
The format of this document has been redesigned to comply with the new identity guidelines
of Ampleon.
•
Legal texts have been adapted to the new company name where appropriate.
BLA0912-250R v.3
20101201
Product data sheet
-
BLA0912-250R v.2
BLA0912-250R v.2
20101015
Product data sheet
-
BLA0912-250R v.1
BLA0912-250R v.1
20100303
Product data sheet
-
-
BLA0912-250R#4
Product data sheet
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Avionics LDMOS power transistor
12. Legal information
12.1 Data sheet status
Document status[1][2]
Product status[3]
Objective [short] data sheet
Development
This document contains data from the objective specification for product development.
Preliminary [short] data sheet
Qualification
This document contains data from the preliminary specification.
Product [short] data sheet
Production
This document contains the product specification.
Definition
[1]
Please consult the most recently issued document before initiating or completing a design.
[2]
The term ‘short data sheet’ is explained in section “Definitions”.
[3]
The product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple devices. The latest product status
information is available on the Internet at URL http://www.ampleon.com.
12.2 Definitions
Draft — The document is a draft version only. The content is still under
internal review and subject to formal approval, which may result in
modifications or additions. Ampleon does not give any representations or
warranties as to the accuracy or completeness of information included herein
and shall have no liability for the consequences of use of such information.
Short data sheet — A short data sheet is an extract from a full data sheet
with the same product type number(s) and title. A short data sheet is intended
for quick reference only and should not be relied upon to contain detailed and
full information. For detailed and full information see the relevant full data
sheet, which is available on request via the local Ampleon sales office. In
case of any inconsistency or conflict with the short data sheet, the full data
sheet shall prevail.
Product specification — The information and data provided in a Product
data sheet shall define the specification of the product as agreed between
Ampleon and its customer, unless Ampleon and customer have explicitly
agreed otherwise in writing. In no event however, shall an agreement be valid
in which the Ampleon product is deemed to offer functions and qualities
beyond those described in the Product data sheet.
12.3 Disclaimers
Limited warranty and liability — Information in this document is believed to
be accurate and reliable. However, Ampleon does not give any
representations or warranties, expressed or implied, as to the accuracy or
completeness of such information and shall have no liability for the
consequences of use of such information. Ampleon takes no responsibility for
the content in this document if provided by an information source outside of
Ampleon.
In no event shall Ampleon be liable for any indirect, incidental, punitive,
special or consequential damages (including - without limitation - lost profits,
lost savings, business interruption, costs related to the removal or
replacement of any products or rework charges) whether or not such
damages are based on tort (including negligence), warranty, breach of
contract or any other legal theory.
Notwithstanding any damages that customer might incur for any reason
whatsoever, Ampleon’ aggregate and cumulative liability towards customer
for the products described herein shall be limited in accordance with the
Terms and conditions of commercial sale of Ampleon.
Right to make changes — Ampleon reserves the right to make changes to
information published in this document, including without limitation
specifications and product descriptions, at any time and without notice. This
document supersedes and replaces all information supplied prior to the
publication hereof.
Suitability for use — Ampleon products are not designed, authorized or
warranted to be suitable for use in life support, life-critical or safety-critical
systems or equipment, nor in applications where failure or malfunction of an
BLA0912-250R#4
Product data sheet
Ampleon product can reasonably be expected to result in personal injury,
death or severe property or environmental damage. Ampleon and its
suppliers accept no liability for inclusion and/or use of Ampleon products in
such equipment or applications and therefore such inclusion and/or use is at
the customer’s own risk.
Applications — Applications that are described herein for any of these
products are for illustrative purposes only. Ampleon makes no representation
or warranty that such applications will be suitable for the specified use without
further testing or modification.
Customers are responsible for the design and operation of their applications
and products using Ampleon products, and Ampleon accepts no liability for
any assistance with applications or customer product design. It is customer’s
sole responsibility to determine whether the Ampleon product is suitable and
fit for the customer’s applications and products planned, as well as for the
planned application and use of customer’s third party customer(s). Customers
should provide appropriate design and operating safeguards to minimize the
risks associated with their applications and products.
Ampleon does not accept any liability related to any default, damage, costs or
problem which is based on any weakness or default in the customer’s
applications or products, or the application or use by customer’s third party
customer(s). Customer is responsible for doing all necessary testing for the
customer’s applications and products using Ampleon products in order to
avoid a default of the applications and the products or of the application or
use by customer’s third party customer(s). Ampleon does not accept any
liability in this respect.
Limiting values — Stress above one or more limiting values (as defined in
the Absolute Maximum Ratings System of IEC 60134) will cause permanent
damage to the device. Limiting values are stress ratings only and (proper)
operation of the device at these or any other conditions above those given in
the Recommended operating conditions section (if present) or the
Characteristics sections of this document is not warranted. Constant or
repeated exposure to limiting values will permanently and irreversibly affect
the quality and reliability of the device.
Terms and conditions of commercial sale — Ampleon products are sold
subject to the general terms and conditions of commercial sale, as published
at http://www.ampleon.com/terms, unless otherwise agreed in a valid written
individual agreement. In case an individual agreement is concluded only the
terms and conditions of the respective agreement shall apply. Ampleon
hereby expressly objects to applying the customer’s general terms and
conditions with regard to the purchase of Ampleon products by customer.
No offer to sell or license — Nothing in this document may be interpreted or
construed as an offer to sell products that is open for acceptance or the grant,
conveyance or implication of any license under any copyrights, patents or
other industrial or intellectual property rights.
Export control — This document as well as the item(s) described herein
may be subject to export control regulations. Export might require a prior
authorization from competent authorities.
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Non-automotive qualified products — Unless this data sheet expressly
states that this specific Ampleon product is automotive qualified, the product
is not suitable for automotive use. It is neither qualified nor tested in
accordance with automotive testing or application requirements. Ampleon
accepts no liability for inclusion and/or use of non-automotive qualified
products in automotive equipment or applications.
In the event that customer uses the product for design-in and use in
automotive applications to automotive specifications and standards, customer
(a) shall use the product without Ampleon’ warranty of the product for such
automotive applications, use and specifications, and (b) whenever customer
uses the product for automotive applications beyond Ampleon’ specifications
such use shall be solely at customer’s own risk, and (c) customer fully
indemnifies Ampleon for any liability, damages or failed product claims
resulting from customer design and use of the product for automotive
applications beyond Ampleon’ standard warranty and Ampleon’ product
specifications.
12.4 Trademarks
Notice: All referenced brands, product names, service names and trademarks
are the property of their respective owners.
Any reference or use of any ‘NXP’ trademark in this document or in or on the
surface of Ampleon products does not result in any claim, liability or
entitlement vis-à-vis the owner of this trademark. Ampleon is no longer part of
the NXP group of companies and any reference to or use of the ‘NXP’
trademarks will be replaced by reference to or use of Ampleon’s own Any
reference or use of any ‘NXP’ trademark in this document or in or on the
surface of Ampleon products does not result in any claim, liability or
entitlement vis-à-vis the owner of this trademark. Ampleon is no longer part of
the NXP group of companies and any reference to or use of the ‘NXP’
trademarks will be replaced by reference to or use of Ampleon’s own
trademarks.
13. Contact information
For more information, please visit:
http://www.ampleon.com
BLA0912-250R#4
Product data sheet
For sales office addresses, please visit:
http://www.ampleon.com/sales
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Avionics LDMOS power transistor
14. Contents
1
1.1
1.2
1.3
2
3
4
5
6
6.1
7
7.1
7.2
8
8.1
9
10
11
12
12.1
12.2
12.3
12.4
13
14
Product profile . . . . . . . . . . . . . . . . . . . . . . . . . . 1
General description . . . . . . . . . . . . . . . . . . . . . 1
Features and benefits . . . . . . . . . . . . . . . . . . . . 1
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Pinning information . . . . . . . . . . . . . . . . . . . . . . 2
Ordering information . . . . . . . . . . . . . . . . . . . . . 2
Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 2
Thermal characteristics . . . . . . . . . . . . . . . . . . 2
Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Ruggedness in class-AB operation . . . . . . . . . 3
Application information. . . . . . . . . . . . . . . . . . . 4
Impedance information . . . . . . . . . . . . . . . . . . . 4
Application circuit . . . . . . . . . . . . . . . . . . . . . . . 4
Test information . . . . . . . . . . . . . . . . . . . . . . . . . 7
RF performance . . . . . . . . . . . . . . . . . . . . . . . . 7
Package outline . . . . . . . . . . . . . . . . . . . . . . . . . 9
Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Revision history . . . . . . . . . . . . . . . . . . . . . . . . 10
Legal information. . . . . . . . . . . . . . . . . . . . . . . 11
Data sheet status . . . . . . . . . . . . . . . . . . . . . . 11
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Contact information. . . . . . . . . . . . . . . . . . . . . 12
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
© Ampleon The Netherlands B.V. 2015.
All rights reserved.
For more information, please visit: http://www.ampleon.com
For sales office addresses, please visit: http://www.ampleon.com/sales
Date of release: 1 September 2015
Document identifier: BLA0912-250R#4